In the NiAl(Co) and TiC nano-compounds, the grain size of NiAl(Co) is only about 10nm and that of TiC is 35～50nm when ball-milling Ni_(50)-Al_(45)-Co_5-10% (volume fraction)TiC powders by the reaction mechanism of the explosive reaction.

NiAl(Co) and TiC nano-compounds were obtained using mechanically alloying Ni_(50)-Al_(40)-Co_(10)-10%(volume fraction)TiC powders. However, increasing with the content of Co, the mechanism of the forming process was changed from the explosive reaction (5% Co, atom fraction) to the inter-diffusion reaction (10%Co, atom fraction).

Pictures of high-speed photography also indicate that the explosive reaction time of solid FAE is longer than TNT and the volume of explosive fireball of solid FAE is larger than TNT in the same conditions.

A concentrated heat source moves at constant speed through a diffusive medium which can support an explosive reaction.

Observation of rapid explosive reaction in Ni-Al bilayer films

Single-phase crystalline fine particles of (CrxV1-x)2O3 have been synthesized by a vapor-phase explosive reaction of a gas mixture of CrO2Cl2 + VOCl3 + H2 + O2 induced by a single laser pulse.

Interaction of impact shock waves that could detonate an explosive (Composition B) confined in a thin-walled container impacted by a cone-nosed projectile is numerically studied, based on the Forest Fire explosive reaction rate model.

Interaction of impact shock waves that could detonate an explosive (Composition B) confined in a thin-walled container impacted by a cylindrical projectile is numerically studied, based on the Forest Fire explosive reaction rate model.

Group transfer polymerization (GTP) monomer (acrylonitrile)was reported.It has very high GTP activity and an explosive polmerizationcan be observed.A detail description for acrylonitrle GTP was given.Becauseacrylonitrile is no a good solvent for poyacrylonitrile,bulk polymerization isa precipitation polymerization and difficult to conduct the plymerization heat.An explosive reaction happens in bulk polymerization.But it can be controlledby N,N-dimethylformamide solvent in solution polymerization.lf solvent...

Group transfer polymerization (GTP) monomer (acrylonitrile)was reported.It has very high GTP activity and an explosive polmerizationcan be observed.A detail description for acrylonitrle GTP was given.Becauseacrylonitrile is no a good solvent for poyacrylonitrile,bulk polymerization isa precipitation polymerization and difficult to conduct the plymerization heat.An explosive reaction happens in bulk polymerization.But it can be controlledby N,N-dimethylformamide solvent in solution polymerization.lf solvent vol-ume is no less than monomer volume,this solution polymerization is a ho-mogeneous polymerization and the explosive polymerization can be avoided.

The constitutive relationship for describing the properties in an explosive reaction zone consists of the chemical reaction rate equation, equations of state of the explosive and products, and laws governing their mixing. In this paper, a global calibration method is proposed, that is, using the results of Lagrange tests and Lagrange analysis to calibrate the constitutive relationship of an explosive. In order to show the effectiveness of this method, we have calibrated five constitutive...

The constitutive relationship for describing the properties in an explosive reaction zone consists of the chemical reaction rate equation, equations of state of the explosive and products, and laws governing their mixing. In this paper, a global calibration method is proposed, that is, using the results of Lagrange tests and Lagrange analysis to calibrate the constitutive relationship of an explosive. In order to show the effectiveness of this method, we have calibrated five constitutive relationships of TNT and TATB at different physical-mechanical conditions. These relationships have directly been used in 1-D and 2-D numerical simulations. They simulated fairly well the records of tests, and no coefficients of constitutive relationship were adjusted. This method is a quick and economical way for the calibration of the constitutive relationship of explosives, The calibration process depicts a clear physical picture and its errors can be estimated. During the calibration, not only the coefficients of the rate equation are determined, but the consistency among these equations, which constitutes the constitutive relationship of explosives, is established at the same time.

The group transfer polymerization(GTP)is a new method of polymersynthesis. A novel initiator,benzylthio trimethyl silane(BTTMS)has been prepared in thepresent study with 80% theoretical yield by reacting trimethylchlorosilane and benzylthiomercaptan in the presense of triethylamine in ether. This initiator has the advantages of easypreparation,low cost and high stability,especially against moisture,compared with com-monly used ketene silyl acetal.BTTMS is so reactive that an explosive reaction has beenusually...

The group transfer polymerization(GTP)is a new method of polymersynthesis. A novel initiator,benzylthio trimethyl silane(BTTMS)has been prepared in thepresent study with 80% theoretical yield by reacting trimethylchlorosilane and benzylthiomercaptan in the presense of triethylamine in ether. This initiator has the advantages of easypreparation,low cost and high stability,especially against moisture,compared with com-monly used ketene silyl acetal.BTTMS is so reactive that an explosive reaction has beenusually observed when it is used to initiate acrylonitrile polymerization. It is also found toinitiate rapid acrylate polymerization with high polymer yield.BTTMS has also proved to beuseful to prepare biblock copolymer and A-B-C type triblock copolymer with methylmethacrylate,butyl acrylate and acrylonitrile segments. The reactivity of BTTMS is com-pared with the most commonly used GTP initiator. Its chemical structure is studied with ￣1H-NMR and its polymerization machanism is discussed.